JPH08212039A - Screen display control device - Google Patents

Abstract

PURPOSE: To improve the operability of multiwindow display by easily checking an window completely hidden by an window with high priority and easily changing the priority. CONSTITUTION: The coordinates and ID information of windows are registered in a window registering memory 1 and the priority of respective windows are registered in a window management table 2. A hidden window detecting part 3 detects a hidden window completely hidden by another window and the coordinates and ID information of the detected hidden window are registered in a hidden window registering memory 4. A superposing processing part 5 superposes a window transferred to a frame buffer 7 to a specified position on a CRT 8 based upon specified priority under the control of a window managing part 6 to display a multiwindow.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen display control device, and more particularly to a display switching device for switching display of superposition in a multi-window display device.

[0002]

2. Description of the Related Art Conventionally, in a display switching apparatus of this type, when a plurality of windows are overlapped with each other, it is generally a method of switching the display by instructing switching with a pointing device or the like to the window whose priority is to be raised. Target.

That is, in the display switching device, as shown in FIG. 4, the display data memory 12 has a window rank display data area 14, and the contents of the window rank display data area 14 are stored in the frame buffer 15. The priority of the overlapping windows a to c is reset by displaying the contents on the CRT 16 and rewriting the contents.

Here, the window order display data area 14 stores the window names and priority numbers of all windows. By rewriting the priority number corresponding to the window whose priority is desired to be raised, Changing the window priority.

In this display switching device, the window management unit 11 normally extracts a plurality of designated windows a to c from the window content display data area 13 in the display data memory 12 and transfers them to the frame buffer 15. Then, the windows a to c are displayed in a multi-window display by superimposing them on a designated position on the CRT 16 in the designated priority order. This display switching technique is disclosed in Japanese Patent Laid-Open No. 63-
This is described in detail in Japanese Patent No. 20525.

[0006]

In the above-mentioned conventional display switching device, the priority of overlapping windows is set by displaying the contents of the window order display data area on the screen and rewriting the contents. Since it has been fixed,
If a window is completely hidden by a window with a high priority, the hidden window cannot be seen on the screen, and the window that is hidden only by the contents of the window priority display data area is used. I can't confirm.

In order to change the priority order of the hidden windows, the priority order cannot be changed until some or all of the windows are visible on the screen.

Further, by displaying the contents of the window rank display data area on the screen, the screen in which a plurality of windows are overlapped and displayed is disturbed, which becomes a problem for operability.

Therefore, an object of the present invention is to solve the above-mentioned problems and to easily confirm a window completely hidden by a window having a high priority and change the priority thereof, thus making it possible to perform multi-window operation. An object of the present invention is to provide a screen display control device capable of improving operability during display.

[0010]

A first screen display control device according to the present invention overlaps with storage means for storing coordinates of a window displayed on the screen and identification information for specifying the window on the screen. Storage means for storing the display priority of each window on the screen, detection means for detecting a hidden window hidden by another window based on the contents of the storage means, and detection means for detecting the hidden window. Display means for displaying the information of the hidden window on the window which is extracted based on the information of the storage means and whose display priority is higher than that of the hidden window.

A second screen display control device according to the present invention is
In addition to the above configuration, a holding unit that holds the coordinates and identification information of the hidden window detected by the detecting unit is provided.

A third screen display control device according to the present invention is
In addition to the above-mentioned configuration, a changing means is provided for changing the display priority of the hidden window to the highest priority in response to an external instruction.

According to a fourth screen display device of the present invention, storage means for storing coordinates of a window displayed on the screen and identification information for identifying the window, and another window hidden based on the contents of the storage means. The detection means detects a hidden window that has been lost, and a display means for displaying information on the hidden window detected by the detection means in a window superimposed on the hidden window.

A fifth screen display control device according to the present invention is
In addition to the above configuration, a holding unit that holds the coordinates and identification information of the hidden window detected by the detecting unit is provided.

A sixth screen display control device according to the present invention is
In addition to the above-mentioned configuration, a change means is provided for changing the display priority of the hidden window on the screen to a higher display priority than the window stacked on the hidden window in response to an external instruction. ing.

[0016]

The hidden window detection unit detects a window hidden by another window based on the coordinates of the window displayed on the screen and the contents of the window registration memory storing the ID information for specifying the window. At that time,
The information of the hidden window is extracted based on the information of the window management table and is displayed in a window having a higher priority than the window.

With this, it becomes possible to easily confirm the window completely hidden by the window having the high priority.

Further, when the information of the hidden window displayed in the window having the higher priority is selected by the pointing device such as the mouse, the contents of the window management table and the hidden window registration memory are updated and the superposition processing unit performs. Perform relocation processing.

As a result, it becomes easy to change the priority order of windows hidden by other windows, and the operability when displaying multiple windows is improved.

[0020]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention. In the figure, a screen display control apparatus according to an embodiment of the present invention includes a window registration memory 1, a window management table 2, a hidden window detection unit 3, a hidden window registration memory 4, an overlay processing unit 5, and a window management. It is composed of a unit 6 and a frame buffer 7.

Further, the screen display control device according to one embodiment of the present invention is connected to the mouse 9 via the mouse interface (IF) 10 and displays a plurality of windows on the CRT 8 in response to an instruction from the mouse 9. Control to do so.

In the window registration memory 1, the coordinates of the window arranged on the screen of the CRT 8 and its ID information are registered. CRT for window management table 2
Each of the windows arranged on the eight screens is registered with a priority order indicating the order in which the windows are displayed on the screen of the CRT 8, and when the layout of each window is changed, the changed priority order is registered.

The hidden window detector 3 detects a hidden window completely hidden by another window based on the contents of the window registration memory 1 and the window management table 2. Hidden window registration memory 4
The coordinates and ID information of the hidden window detected by the hidden window detection unit 3 are registered in.

The overlay processing section 5 is a window management section 6
Under the control of the above, the windows stored in the display data memory (not shown) are taken out and transferred to the frame buffer 7, and those windows are overlapped at the designated position on the CRT 8 in the designated priority order to obtain the multi-window. indicate.

The window management unit 6 controls each of the above units to display a plurality of windows in a multi-window display by superimposing a plurality of windows at designated positions on the CRT 8 in a designated priority order. The contents of the window to be displayed on the CRT 8 are written in the frame buffer 7.

FIGS. 2 and 3 are views showing display examples of hidden windows according to an embodiment of the present invention. 2A shows a state before the hidden window occurs, FIG. 2B shows a state after the hidden window occurs, and FIG.
FIG. 3 is a diagram showing a display example of a hidden window generated in FIG.

Further, FIG. 3A shows a state before the hidden window occurs, FIG. 3B shows a state after the hidden window occurs, and FIG. 3C shows FIG. 3B. It is a figure which shows the example of a display of the hidden window which arose in.

The detection and display of the hidden window and the change of the priority order of the hidden window according to the embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 2A, when the windows W1, W2 and W3 are displayed overlapping each other on the screen of the CRT 8, if the window W1 is moved and the display range is changed, the window management table is displayed. The changed priority order is registered in 2. In this case, the window management table 2 is registered with higher priorities in the order of window W1, window W2, and window W3.

The hidden window detector 3 uses the window W1
Window is moved and the display range is changed, the window W
The presence / absence of a hidden window is determined from the coordinate after the change of 1 and the coordinate registered in the window registration memory 1.

The hidden window detector 3 uses the window W3
When it is detected that is a hidden window, the coordinates and ID information of the window W3 are registered in the hidden window registration memory 4.

When the window management unit 6 is notified by the hidden window detection unit 3 that a hidden window has been detected, the window management unit 6 uses the information of the window W3 registered in the hidden window registration memory 4 and the information of the window management table 2 as a basis. In addition, the window W3 is displayed in the display area A set in a part of the rectangular area in which the window W2 that is higher in priority than the window W3 and is not a hidden window is displayed.
Information A1 of [1] is displayed [see FIGS. 2 (b) and 2 (c)].

When the information A1 of the window W3 is selected by the mouse 9 on the screen of the CRT 8, the window management unit 6 determines that the priority order of the window W3 is changed, and the priority order of the window W3 is changed to, for example, the highest priority. The window management table 2 and the contents of the hidden window registration memory 4 are updated.

After that, the window management unit 6 performs a rearrangement process in the superposition processing unit 5 based on the updated data,
The new data is output to the frame memory 7 and the screen of the CRT 8 is rewritten.

Further, as shown in FIG. 3A, the CRT 8
When the windows W1, W2, W3, W4 are displayed overlapping each other on the screen, the window W1 is moved, and the changed priority order is registered in the window management table 2. In this case, the window management table 2 has windows W1, W2, and W
The highest priority is registered in the order of 3 and window W4.

The hidden window detector 3 uses the window W1
When the movement is performed, the presence / absence of a hidden window is determined from the changed coordinates of the window W1 and the coordinates registered in the window registration memory 1.

The hidden window detector 3 uses the window W
When it is detected that 3 and W4 are hidden windows, the coordinates and ID information of the windows W3 and W4 are registered in the hidden window registration memory 4.

When the hidden window detection unit 3 notifies the window management unit 6 that a hidden window has been detected, the window management unit 6 stores information on the windows W3 and W4 registered in the hidden window registration memory 4 and information on the window management table 2. Information of the windows W3 and W4 in the display area B set in a part of the rectangular area in which the window W1 superimposed on the windows W3 and W4 is displayed.
2 is displayed [see FIGS. 3 (b) and 3 (c)].

When the information B1 of the window W3 or the information B2 of the window W4 on the screen of the CRT 8 is selected by the mouse 9, the window management section 6 opens the window W3.
It is determined that the priority of the window W4 or the priority of the window W4 is changed,
For example, the priority is changed to a higher priority than the priority of the window W1 and registered in the window management table 2, and the contents of the hidden window registration memory 4 are updated.

After that, the window management unit 6 performs rearrangement processing in the superposition processing unit 5 based on the updated data,
The new data is output to the frame memory 7 and the screen of the CRT 8 is rewritten.

As described above, the hidden window detection unit 3 hides the window displayed on the screen on the basis of the contents of the window registration memory 1 storing the ID information for specifying the window and the other window W1. When the windows W3 and W4 are detected, the information of the hidden windows W3 and W4 is extracted based on the information of the window management table 2, and the windows W2 and W1 having a higher priority than the windows W3 and W4 are extracted. By displaying the windows, it is possible to easily confirm the windows W3 and W4 completely hidden by the window W1 having a high priority.

Further, the window W2 having a higher priority is
When the information on the windows W3 and W4 displayed on W1 is selected by the pointing device such as the mouse 9, the window management table 2 and the hidden window registration memory 4 are displayed.
By updating the contents of the above and performing the rearrangement processing by the superposition processing unit 5, it is possible to easily change the priority order of the windows W3 and W4 hidden by the other window W1. The operability of can be improved.

[0044]

As described above, according to the present invention, it is hidden by another window based on the contents of the storage means for storing the coordinates of the window displayed on the screen and the identification information for specifying the window. When a hidden window is detected, the information of the detected hidden window is extracted based on the information of the storage means that stores the display priority of each overlapping window on the screen and the display priority is given to the hidden window. By displaying in a window with a higher priority and changing the display priority of the hidden window to a higher priority than the display priority of other windows in response to external instructions, it is completely hidden by the higher priority window. You can easily check the opened windows and change their priority order. There is an effect that it is possible to improve the resistance.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

2A is a diagram showing a state before a hidden window is generated, FIG. 2B is a diagram showing a state after the hidden window is generated, and FIG. 2C is a hidden window generated in FIG. 2B. It is a figure which shows the example of a display of.

3A is a diagram showing a state before a hidden window is generated, FIG. 3B is a diagram showing a state after the hidden window is generated, and FIG. 3C is a hidden window generated in FIG. 3B. It is a figure which shows the example of a display of.

FIG. 4 is a block diagram showing a configuration of a conventional example.

[Explanation of symbols]

 1 window registration memory 2 window management table 3 hidden window detection unit 4 hidden window registration memory 5 overlay processing unit 6 window management unit 7 frame memory 8 CRT A, B display area A1, B1, B2 hidden window information W1 to W4 windows

Claims (6)

[Claims] 1. A storage means for storing coordinates of a window displayed on the screen and identification information for identifying the window, and a storage means for storing a display priority order on the screen of each of the windows overlapping on the screen. Detecting means for detecting a hidden window hidden by another window based on the contents of the storing means, and information on the hidden window detected by the detecting means is extracted based on the information in the storing means. And a display unit for displaying in a window whose display priority is higher than that of the hidden window. 2. The screen display control device according to claim 1, further comprising a holding unit that holds the coordinates and the identification information of the hidden window detected by the detecting unit. 3. The screen display device according to claim 1, further comprising a changing unit that changes the display priority of the hidden window to the highest priority in response to an external instruction. 4. Storage means for storing coordinates of a window displayed on the screen and identification information for identifying the window, and detection for detecting a hidden window hidden by another window based on the contents of the storage means. A screen display control device comprising: means and display means for displaying information on the hidden window detected by the detection means in a window superimposed on the hidden window. 5. The screen display control device according to claim 4, further comprising a holding unit that holds the coordinates and identification information of the hidden window detected by the detecting unit. 6. A change means for changing the display priority of the hidden window on the screen to a higher display priority than the window stacked on the hidden window in response to an external instruction. The screen display device according to claim 4 or claim 5.